Hi Marc, > > I think for an upgrade the rocksdb is necessary. Check this for your monitors > > cat /var/lib/ceph/mon/ceph-a/kv_backend Thanks, but I already had migrated all mons to use rocksdb when upgrading to Luminous. ~ # cat /srv/ceph/mon/ceph-host1/kv_backend rocksdb Is this what you expect here? Best regards Oliver _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx